US Bridges

Forest Leaf DR over Grand Glaize CR

FairPosted for load

St. Louis County, Missouri · S 25 T 45 N R 4 E · Structure no. 12915

Built
1976
49 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
250
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Forest Leaf DR over Grand Glaize CR is a concrete culvert carrying Forest Leaf DR over Grand Glaize CR in St. Louis County, Missouri. It was built in 1976, so it is 49 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 1% of them trucks, projected to reach 338 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesForest Leaf DR
CrossesGrand Glaize CR
LocationS 25 T 45 N R 4 E
RouteCity Street 0
CountySt. Louis County
StateMissouri
Coordinates38.60386, -90.52971
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 10
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic338 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Leaf DR over Grand Glaize CR built?

It was built in 1976, making it 49 years old in 2025.

What condition is Forest Leaf DR over Grand Glaize CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Forest Leaf DR over Grand Glaize CR carry?

About 250 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Forest Leaf DR over Grand Glaize CR?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Forest Leaf DR over Grand Glaize CR?

It is owned by the City or Municipal Highway Agency.